CVE-2024-34251

Exp

An out-of-bound memory read vulnerability was discovered in Bytecode Alliance wasm-micro-runtime v2.0.0 which allows a remote attacker to cause a denial of service via the "block_type_get_arity" function in core/iwasm/interpreter/wasm.h.

Published: 2024-05-06 Last update: 2025-06-13 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-34251 is rated High Exploit Risk (68.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.53%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2024-34251

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2024-34251

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-25 0.45% 0.53% +0.08%
2 2026-04-05 0.33% 0.45% +0.12%
3 2025-11-21 — 0.33% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-34251

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2024-34251

OS Trackers for CVE-2024-34251

vendor priority summary link
ubuntu medium CVE-2024-34251 medium priority: Ubuntu including 1 source packages (netdata), 7 status rows across 7 suites (bionic, focal, jammy, mantic, noble, oracular, upstream): not-affected 4, ignored 1, needs-triage 1, released 1. https://ubuntu.com/security/CVE-2024-34251

Affected software / configurations for CVE-2024-34251

Vendor Product Version Raw CPE
bytecodealliance webassembly_micro_runtime 2.0.0 cpe:2.3:a:bytecodealliance:webassembly_micro_runtime:2.0.0:*:*:*:*:*:*:*

References for CVE-2024-34251

cvelogic Threat Intelligence